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Analysis and Statistics of the Spectroscopic Sample of Byurakan-IRAS Galaxies

Published online by Cambridge University Press:  25 July 2014

Gohar S. Harutyunyan  and
Areg M. Mickaelian
Gohar S. Harutyunyan
Affiliation:
Byurakan Astrophysical Observatory (BAO), Armenia Email: [email protected], [email protected]
Areg M. Mickaelian
Affiliation:
Byurakan Astrophysical Observatory (BAO), Armenia Email: [email protected], [email protected]
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Abstract

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A summary and general analysis of optical spectroscopic data for 255 Byurakan-IRAS Galaxies (BIG) obtained with BAO 2.6m, SAO 6m, OHP 1.93m telescopes, as well as SDSS DR7, DR8, and DR9 is given. The BIG sample is the result of optical identifications of IRAS PSC sources at high-galactic latitudes using the First Byurakan Survey (FBS) low-dispersion spectra. Among the 1178 objects most are spiral galaxies and there is a number of ULIRGs. All but one have emission lines; we have discovered 68 AGN and composite spectrum objects among them and the others are mostly Starburst Galaxies (SB). All possible physical characteristics have been measured and/or calculated, including physical sizes and optical and IR/FIR luminosities. The masses have been estimated based on mass-luminosity relations for spiral galaxies. As it appears, most of these objects are giant massive galaxies. Various multiwavelength (MW) data have been retrieved from recent catalogues from X-ray to radio and MW SEDs have been built, which have been matched to their optical classifications. Luminosity evolution of these objects has been studies.

Keywords

IR galaxiesspectroscopyAGNStarburst galaxies
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S304: Multiwavelength AGN Surveys and Studies , October 2013 , pp. 68 - 69
Copyright
Copyright © International Astronomical Union 2014 

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